214221604 has 6 divisors (see below), whose sum is σ = 374887814. Its totient is φ = 107110800.

The previous prime is 214221587. The next prime is 214221613. The reversal of 214221604 is 406122412.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 163840000 + 50381604 = 12800^2 + 7098^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26777697 + ... + 26777704.

Almost surely, 2^214221604 is an apocalyptic number.

It is an amenable number.

214221604 is a deficient number, since it is larger than the sum of its proper divisors (160666210).

214221604 is a wasteful number, since it uses less digits than its factorization.

214221604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53555405 (or 53555403 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 214221604 is about 14636.3111472802. The cubic root of 214221604 is about 598.3487970871.

The spelling of 214221604 in words is "two hundred fourteen million, two hundred twenty-one thousand, six hundred four".